Detailed Explanation:

Answer: Option 1 — 1, 2 and 4

This question tests knowledge of major Himalayan glaciers and their associated river systems. The correctly matched pairs are Bandarpunch-Yamuna, Bara Shigri-Chenab, and Siachen-Nubra, making option 1 the correct answer.

✅ Pair 1 – Bandarpunch : Yamuna – Correct: Bandarpunch glacier in the Garhwal Himalayas of Uttarakhand is one of the principal sources of the Yamuna River.

✅ Pair 2 – Bara Shigri : Chenab – Correct: Bara Shigri is the second-longest glacier in the Himalayas (after Gangotri) and feeds the Chenab River through its tributary system.

❌ Pair 3 – Milam : Mandakini – Incorrect: Milam Glacier in Uttarakhand feeds the Gori Ganga River (tributary of Kali River), not Mandakini. Mandakini originates from Chorabari Glacier near Kedarnath.

✅ Pair 4 – Siachen : Nubra – Correct: Siachen Glacier in the Karakoram Range is one of the world's longest mountain glaciers and is the source of the Nubra River, which later joins the Shyok River.

❌ Pair 5 – Zemu : Manas – Incorrect: Zemu Glacier in Sikkim feeds the Teesta River, not the Manas River. Manas originates in Bhutan and flows through Assam.

📝 Short Notes: Major Himalayan Glaciers and Their Rivers